Nobody is going to have a tutorial on this because it's dirt simple. A timer takes no more than 2 minutes to figure out how to use if you've never even heard of one before, and surely you've used one at some point by now. And swapping between images, in an image view for instance, is one line of code.

At the risk of sounding like a jerk, surely you can put this together on your own?

The full source code is available as an example iOS Xcode project. If you want more advanced features like frame to frame compression and 7zip compression of the final result take a look at my AVAnimator library.